| AB | Near infrared-visible-ultraviolet absorption |
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| CC | Color-center laser |
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| CL | Chemiluminesence |
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| CR | Cavity ringdown |
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| DL | Diode laser absorption |
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| DPI | Depletion photoionization |
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| DR | Double resonance |
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| ED | Electron diffraction |
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| EF | Electron-excited fluoresence |
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| EM | Near infrared-visible-ultraviolet emission |
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| ESR | Electron spin resonance |
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| FD | Fluoresence depletion |
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| HFD | High frequency deflection |
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| IB | Ion beam |
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| ID | Ion drift or ion depletion |
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| IR | Infrared absorption (conventional or Fourier transform) |
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| LD | Laser difference frequency |
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| LF | Laser-excited fluoresence (excitation and resolved emission) |
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| LMR | Laser magnetic resonance |
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| LS | Laser Stark spectroscopy |
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| MO | Molecular orbital calculations |
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| MODR | Microwave-optical double resonance |
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| MPD | Multiphoton dissociation |
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| MPI | Multiphoton ionization |
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| MW | Microwave and millimeter wave |
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| ND | Neutron diffraction |
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| PD | Electron photodetachment |
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| PE | Photoelectron spectroscopy |
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| PEFCO | Photoelectron-photon coincidence |
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| T-PEFCO | Threshold photoelectron-photon coincidence |
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| PEPICO | Photoelectron-photoion coincidence |
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| PF | Photofragment spectroscopy |
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| PI | Photoionization |
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| PIFCO | Photoion-photon coincidence |
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| PIR | Photoionization resonance |
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| PRI | Photoinduced Rydberg spectroscopy |
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| Ra | Raman |
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| SEP | Simulated emission pumping |
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| TF | Tunable far infrared laser |
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| TPE | Threshold photoelectron spectroscopy, including ZEKE detection |
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| UV | Near infrared-visible-ultraviolet absorption and emission |
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